44 Mr. G. C. Champion's Revision of the Mexican 



e®. Elytra black, long, opaque, 

 setose ; prothorax testa- 

 ceo-marginate. 

 e'. Prothorax shining : 



species large . . . plagiatus, Gorh. 

 /'. Prothorax opaque : 

 species smaller [(J un- 

 known] opacipennis, n. sp. 



p. Elytra metallic. 



g''. Elytra shining, violace- 

 ous (a small faint 

 streak at the sides ex- 

 cepted), setose and 

 closely pubescent ; 



antennae long and 



stout hyssinus, Er. 



K'. Elytra shining, green, 

 finely pubescent; head 

 and prothorax testace- 

 ous aeneopicipennis, Gorh. 



i^. Elytra duller and more 



rugose, violaceous or 



nigro-caeruleous, finely 



pubescent ; head black. 



a^. Epistoma ($) tumid 



[ (J unknown] . . hepburnius, Gorh. 

 b^. Epistoma (?) flattened 



[ (J unknown] . . crux-nigra, n. sp. 

 g^. Elytra testaceous, with 

 violaceous spots ; pro- 

 thorax rufescent ; an- 

 teimae very elongate in 

 (J : species large . . . forticornis, n. sp. 

 h^. Elytra testaceous, with 

 black spots. 

 f. Prothorax nigro-bimacu- 

 late or almost wholly 

 black ; upper surface 

 densely, finely punc- 

 tate. 

 c^. Prothorax ample, 



nearly or quite as 

 wide as elytra . . maculosus, Gorh. 



